Airplane



Dec. 22, 1936. 'H TT-ROF I 2,065,401

AIRPLANE Filed July 16, 1934 2 Sheets-Sheet 2 Patented Dec.' 22, 1936 v UNITED STATES PATENT OFFICE 'AIRPLANE George Schottrofl, Yankton, S. Dak.

Application July 16, 1934, Serial No. 135,472

" 2 Claims. (01. 244-45) A still further important object of the invention will be found to reside in the particular construction, providng for more safety in taking off, landing, and straight flying.

A still further important object of the invention is to provide a combined body and wing construction and arrangement giving a safer balance, and at the same time an increase in carrying capacity at a greater speed than the present type of airplane.

The means which I employ to attain these objects will be better understood from the accompanying drawings, taken in connection with the description. In the accompanying drawings, forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure l is a top plan view of the improved airplane construction,

Figure 2 is a side view thereof,

Figure 3 is a front view,

Figure 4 is a rear view,

Figure 5 is a sectional view on line 5-5 of Figure 1,

Figure 6 is a sectional view on line 66 of Figure 1,

Figure 7 is a section on the line of Figure 1.

In the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the reference numeral i generally designates a fuselage on which there is mounted the usual propeller 2. The fuselage is exceptionally well stream-lined as indicated by the tapered entering section 3 and the tapered rear portions 4 and 5. On the rear portion 4 there is mounted the usual rudder 6 and on the rear section 5 there is arranged the pivotally mounted elevator 1.

To the forward entering section 3 of the fuselage there is firmly secured in the usual manner on each side thereof, the wings 8 which have ,rearwardly extending portions 9, on the rear of which are mounted ailerons l0.

It will thus be seen from the drawings that the rearwardly extending wing portions are tapered from the dotted line in- Figure 1, to the ailerons, both in thickness and in breadth. Connecting the rearwardly extending wing portion 9 with the fuselage I and at the rear thereof, are the bracing wing members H. v

On the rear of the fuselage there is provided the usual rudder 6 which is controlled in the ordinary manner by foot control, and the elevator 1, and ailerons it, are connected by the usual stick control and their function is the same as on a conventional plane.

From the drawings it will be seen that the rearwardly' extending wing portions 9 have a lateral dihedral angle, as at I2. This dihedral angle gives the plane lateral stability. The laterally extending Wings 8 are provided with a beveled portion 13 which forms a dihedral angle with the wing portion 9, thereby providing longitudinal stability.

The plane is provided with the usual landing wheels It and castor wheel 85. In the operation of the airplane it will be seen that the center of gravity is surrounded by the wing structure and that the wing has by virtue of its particular construction, inherent lateral stabilizing means as well as inherent longitudinal stabilizing means. Obviously, therefore, by virtue of this particular construction, the airplane will not only permit of an increased carrying capacity at a greater speed, but also by virtue of the particular wing construction, provides a greater lifting surface and less frontal area or resistance than the conventional plane.

While there is shown for the purpose of illustration a preferred embodiment of the invention, it is to 'be specifically understood that it is capable of various changes and modifications without departing from the spirit or scope thereof, and it is intended therefore, that only such limitations shall be imposed thereon as are indicated in the prior art or in the appended claims.

What is claimed is:

1. An airplane comprising a fuselage, propelling means cn said fuselage, lateral and vertical control planes mounted on the rear of said fuselage, wings extending laterally from each side of said fuselage adjacent the front portion thereof,

said fuselage, the top portions of the laterally extending wings being substantially flat, the under surface thereof being tapered upwardly toward the front edge thereof, the outer portions of the rearwardly extending side wings extending upwardly defining a dihedral angle.

2. An airplane comprising, a fuselage, propelling means on said fuselage, lateral and vertical control planes mounted on the rear of said fuselage, wings extending laterally from each side of said fuselage adjacent the front portion thereof, side wings secured'to each of said laterally extending wings, each of said side wings extending substantially the full length of the fuselage and in spaced relation to the sides thereof throughout the greater part of their length, the inner edges thereof converging toward the front of said fuselage, brace members connecting the rear portions of said side wings to the fuselage, said brace members being substantially perpendicular to said fuselage, the top portions of the laterally extending wings being substantially flat, the under surface thereof being tapered upwardly toward the front edge thereof, the outer portions of the rearwardly extending side wings extending upwardly deflning'a dihedral angle, and ailerons on the rear portions of each of said side wings.

- GEORGE SCHOTTROFF. 

